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Diffstat (limited to 'cpu/mpc824x/drivers/dma_export.h')
-rw-r--r-- | cpu/mpc824x/drivers/dma_export.h | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/cpu/mpc824x/drivers/dma_export.h b/cpu/mpc824x/drivers/dma_export.h deleted file mode 100644 index 471e488..0000000 --- a/cpu/mpc824x/drivers/dma_export.h +++ /dev/null @@ -1,100 +0,0 @@ -#ifndef DMA_EXPORT_H -#define DMA_EXPORT_H - -/**************************************************** - * $Id: - * - * Copyright Motorola 1999 - * - * $Log: - * - ****************************************************/ - -/* These are the defined return values for the DMA_* functions. - * Any non-zero value indicates failure. Failure modes can be added for - * more detailed error reporting. - */ -typedef enum _dma_status -{ - DMA_SUCCESS = 0, - DMA_ERROR, -} DMA_Status; - -/* These are the defined channel transfer types. */ -typedef enum _dma_transfer_types -{ - DMA_M2M = 0, /* local memory to local memory */ - DMA_M2P = 1, /* local memory to PCI */ - DMA_P2M = 2, /* PCI to local memory */ - DMA_P2P = 3, /* PCI to PCI */ -} DMA_TRANSFER_TYPE; - -typedef enum _dma_interrupt_steer -{ - DMA_INT_STEER_LOCAL = 0, /* steer DMA int to local processor */ - DMA_INT_STEER_PCI = 1, /* steer DMA int to PCI bus through INTA_ */ -} DMA_INTERRUPT_STEER; - -typedef enum _dma_channel -{ - DMA_CHN_0 = 0, /* kahlua has two dma channels: 0 and 1 */ - DMA_CHN_1 = 1, -} DMA_CHANNEL; - -typedef enum _dma_snoop_mode -{ - DMA_SNOOP_DISABLE = 0, - DMA_SNOOP_ENABLE = 1, -} DMA_SNOOP_MODE; - -/******************** App. API ******************** - * The application API is for user level application - * to use the functionality provided by DMA driver. - * This is a "generic" DMA interface, it should contain - * nothing specific to the Kahlua implementation. - * Only the generic functions are exported by the library. - * - * Note: Its App.s responsibility to swap the data - * byte. In our API, we currently transfer whatever - * we are given - Big/Little Endian. This could - * become part of the DMA config, though. - **************************************************/ - - -/* Initialize DMA unit with the following: - * optional pointer to application layer print function - * - * These parameters may be added: - * ??? - * Interrupt enables, modes, etc. are set for each transfer. - * - * This function must be called before DMA unit can be used. - */ -extern DMA_Status DMA_Initialize( - int (*app_print_function)(char *,...)); /* pointer to optional "printf" - * provided by application - */ - -/* Perform the DMA transfer, only direct mode is currently implemented. - * At this point, I think it would be better to define a different - * function for chaining mode. - * Also, I'm not sure if it is appropriate to have the "generic" API - * accept snoop and int_steer parameters. The DINK user interface allows - * them, so for now I'll leave them. - * - * int_steer controls DMA interrupt steering to PCI or local processor - * type is the type of transfer: M2M, M2P, P2M, P2P - * source is the source address of the data - * dest is the destination address of the data - * len is the length of data to transfer - * channel is the DMA channel to use for the transfer - * snoop is the snoop enable control - */ -extern DMA_Status DMA_direct_transfer( DMA_INTERRUPT_STEER int_steer, - DMA_TRANSFER_TYPE type, - unsigned int source, - unsigned int dest, - unsigned int len, - DMA_CHANNEL channel, - DMA_SNOOP_MODE snoop); -#endif |